Communication Operation And Setting; Wiring And Configuration Of Pu Connector - Mitsubishi Electric FR-A720-0.4K Instruction Manual

Communication operation and setting

4.24 Communication operation and setting

Purpose
Communication operation from PU connector
Communication operation from RS-485
terminals
Restrictions on parameter write through
communication
Communication using USB (FR-Configurator)

4.24.1 Wiring and configuration of PU connector

Using the PU connector, you can perform communication operation from a personal computer etc.
When the PU connector is connected with a personal, FA or other computer by a communication cable, a user program
can run and monitor the inverter or read and write to parameters.
(1) PU connector pin-outs
CAUTION
⋅ Pins No. 2 and 8 provide power to the operation panel or parameter unit. Do not use these pins for RS-485 communication.
⋅ Do not connect the PU connector to the computer's LAN board, FAX modem socket or telephone modular connector. The
product could be damaged due to differences in electrical specifications.
312
Parameter that must be Set
Initial setting of computer link
communication (PU connector)
Initial setting of computer link
communication (RS-485 terminals)
Modbus-RTU communication
specifications
Communication EEPROM write
selection
USB communication
Pin Number
Inverter
(Receptacle side)
Front view
8)
to
1)
Pr. 117 to Pr. 124
Pr. 331 to Pr. 337,
Pr. 331, Pr. 332,
Pr. 334, Pr. 343,
Pr. 547, Pr. 548
Name
1) SG
⎯
2) Operation panel power supply
3) RDA
4) SDB
5) SDA
6) RDB
7) SG
⎯
8) Operation panel power supply
Refer to
Page
317
Pr. 341
330
Pr. 549
Pr. 342 318
343
Description
Earth (Ground)
(connected to terminal 5)
Inverter receive+
Inverter send-
Inverter send+
Inverter receive-
Earth (Ground)
(connected to terminal 5)